Cream-cooler.



J. S. WEARN.

Patented June 26, 1917.

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JAMES STUART WEARN, OF CHRISTCHURCH, NEW ZEALAND/ CREAM-COOLER.

I Specification of Letters Patent.

Patented June 26, 1917.

Application filed October 5, 1915. Serial No. 54,125.

To all whom it may concern:

Be it known that I, J AMES STUART WVEARN, a subject of the King of GreatBritain, residing at 5 11 Colombo street, Christchurch, in the Dominionof New Zealand, have invented new and useful 1mprovements inCream-Coolers, of which the following is a specification.

This invention relates to a device for use in cooling cream as'it isdelivered from a cream separator, its object being to provide aconstruction which will perform the cooling more rapidly and thoroughlythan would be possible with devices at present employed for thispurpose. In order that the nature of the invention and its constructionmay be fully understood, reference will now be made to the accompanyingsheet of drawings in which:+

Figure 1 shows the device in place upon a cream separator in readinessfor use, and, Fig. 2 is a vertical section of a portion of the device,upon a somewhat larger scale, illustrating the details of itsconstruction.

The said construction consists of a length of metal tubing wound so asto form a spiral or helix 1 through which a continuous flow' of coldwater is maintained when the device is in use. The said flow of water isadmitted to the lowermost point of the helix and permitted to escapefrom the top.

Arranged within the hollow center or core of the helix 1 at the upperend of the latter and secured in place by any suitable means, as by apin 1 projecting from the cap and fitting between the coils of the helixas here shown, is a cap 2 having a flat upper end 3 surrounded by aflange or bead & the lower edge of which extends downwardly in linevertically with the center of the tube constituting the upperconvolution of the helix 1. The periphery 5 of the cap which fits withinthe core of the helix, is preferably fluted or provided with ridges,buttons or otherwise formed so as to provide intervals or channelsbetween such periphery and the internal surface of the helix. To providea means of supporting the device in the required position, the upper end3 of the cap is furnished with a hook or ring 6 by means of which suchdevice may be suspended from the cream spout 7 of the separator 8.

In operatlon, the cream, as it issues from the spout 7, is received uponthe upper side 3 of the cap 2 and overflowing the bead 4, trickles downthe sides of the latter. Owing to the fact that the sides of the beadare in line vertically with the middle of the tubing of the helix, asalready explained, the cream will be so directed onto the top of thehelix that it will flow evenly down both inner and outer surfaces, thechannels between the periphery of the cap and the inner surface of thehelix permitting a free flow down the internal portion of the cooler.The cream as it passes downward therefore forms a thin film completelyenveloping the inner and outer faces of the helix and consequentlypresents a maximum surface to the cooling action of the watercirculating through the helix.

I claim:

1. A cooler of the class described com prising a vertically disposedhelical coil of tubing, and a cap for the coil having a cylindricalportion fitting within the upper end of the latter, the said cylindricalportion being formed so as to provide longitudinal exterior channels forthe passage of liquid between the said cap portion and the surroundingconvolutions of the coil, the upper end of the cap being closed andadapted to receive a flow of liquid, and an annular flange surroundingthe upper end of the cap and having its edge projecting downwardlytherefrom, the said edge of the flange being equal in diameter to themean of the internal and external diameters of the coil so as to directthe liquid which overflows the upper end of the cap down both the innerand outer surfaces of the coil.

2. A cooler of the class described comprising a vertically disposedhelical coil of tubing, and a cap for the coil having a cylindricalportion fitting within the upper end of the latter, the said cylindricalportion beingformed so as to provide longitudinal exterior channels forthe passage of liquid between the said cap portion and the surroundingconvolutions of the coil, the upper end of the cap being closed andadapted to receive a flow of liquid, and an annular flange surroundingthe upper end of the cap and having its edge projecting downwardlytherefrom, the said edge of the flange being equal in diameter to themean of the internal and external diameters In testimony whereof I havesigned my of the coil so as to d rect the l quid which name to thisspecification in the presence of overflows the upper end of the cap downtwo subscribing Witnesses.

both the inner and outer surfaces of the 7 JAMES STUART WVEARN. coil,the said flange being formed so. as to Witnesses:

provide a raised margin for the upper end PERCY RICHMOND CLIMIE,

of the cap. SIDNEY JAMES TRELEAVEN.

Copies ofjthis patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

